package com.sky.mapper;


import com.sky.dto.ShoppingCartDTO;
import com.sky.entity.ShoppingCart;
import org.apache.ibatis.annotations.*;
import org.springframework.web.bind.annotation.DeleteMapping;

import java.util.List;

@Mapper
public interface ShoppingCartMapper {


    /**
     * 动态条件查询
     * @param shoppingCart
     * @return
     */
    List<ShoppingCart> list(ShoppingCart shoppingCart);

    /**
     * 根据id修改商品数量
     * @param shoppingCart
     */
    @Update("update shopping_cart set number = #{number} where id = #{id}")
    void updateNumberById(ShoppingCart shoppingCart);

    /**
     * 插入购物车数据
     * @param shoppingCart
     */
    @Insert("insert into shopping_cart (name, user_id, dish_id, setmeal_id, dish_flavor, number, amount, image, create_time)" +
            " values (#{name},#{userId},#{dishId},#{setmealId},#{dishFlavor},#{number},#{amount},#{image},#{createTime})")
    void insert(ShoppingCart shoppingCart);


    /**
     * 清空购物车
     * @return
     */
    @Delete("delete from shopping_cart where user_id = #{userId}")
    void cleanShoppingCart(Long userId);

    /**
     * 减去商品的数量，删除购物车中最后一件数量为1的商品
     * @param shoppingCart
     */
    @Delete("delete from shopping_cart where user_id = #{userId} and number = 1")
    void delete(ShoppingCart shoppingCart);

    @Delete("delete from shopping_cart where user_id = #{userId}")
    void deleteByUserId(Long userId);

    /**
     * 批量插入购物车数据
     *
     * @param shoppingCartList
     */
    void insertBatch(List<ShoppingCart> shoppingCartList);
}
